myshell.exe:myshell.c
	@gcc $^ -o $@ -std=c99
	@echo "compile $^ to $@"
debug:myshell.c
	gcc -g $^ -o $@ -std=c99

all:test.exe 
test.exe:test.cpp
	@g++ $^ -o $@ -std=c++11
.PHONY:clean
clean:
	rm -f myshell.exe 
call:
	rm -f test.exe 
